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Ultra-High-Energy Neutrino Linked to Dying Primordial Black Hole

9/25/2025

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Summary

Story summary

KM3NeT detected the ultra-high-energy neutrino KM3-230213A, possibly from a dying primordial black hole.
The neutrino carries about 220 petaelectronvolts, exceeding energies produced by Earth-based accelerators.
Researchers propose primordial black holes formed after the Big Bang could emit Hawking radiation before exploding, with about 8% likelihood of a nearby explosion, and the research was published in Physical Review Letters.

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Story summary

KM3NeT detected the ultra-high-energy neutrino KM3-230213A, possibly from a dying primordial black hole.
The neutrino carries about 220 petaelectronvolts, exceeding energies produced by Earth-based accelerators.
Researchers propose primordial black holes formed after the Big Bang could emit Hawking radiation before exploding, with about 8% likelihood of a nearby explosion, and the research was published in Physical Review Letters.